Adding support for reporting addresses of JIT compiled code to OProfile

src/compiler.cc

 // Copyright 2006-2008 the V8 project authors. All rights reserved.
 // Redistribution and use in source and binary forms, with or without
 // modification, are permitted provided that the following conditions are
 // met:
 //
 //     * Redistributions of source code must retain the above copyright
 //       notice, this list of conditions and the following disclaimer.
 //     * Redistributions in binary form must reproduce the above
 //       copyright notice, this list of conditions and the following
 //       disclaimer in the documentation and/or other materials provided
@@ skipping 17 matching lines @@
 #include "v8.h"
 
 #include "bootstrapper.h"
 #include "codegen-inl.h"
 #include "compilation-cache.h"
 #include "compiler.h"
 #include "debug.h"
 #include "scopes.h"
 #include "rewriter.h"
 #include "usage-analyzer.h"
+#include "oprofile-agent.h"
 
 namespace v8 { namespace internal {
 
 static Handle<Code> MakeCode(FunctionLiteral* literal,
                              Handle<Script> script,
                              Handle<Context> context,
                              bool is_eval) {
   ASSERT(literal != NULL);
 
   // Rewrite the AST by introducing .result assignments where needed.
@@ skipping 68 matching lines @@
 
   // Compile the code.
   Handle<Code> code = MakeCode(lit, script, context, is_eval);
 
   // Check for stack-overflow exceptions.
   if (code.is_null()) {
     Top::StackOverflow();
     return Handle<JSFunction>::null();
   }
 
-#ifdef ENABLE_LOGGING_AND_PROFILING
+#if defined ENABLE_LOGGING_AND_PROFILING || defined ENABLE_OPROFILE_AGENT
   // Log the code generation for the script. Check explicit whether logging is
   // to avoid allocating when not required.
-  if (Logger::is_enabled()) {
+  if (Logger::is_enabled() || OProfileAgent::is_enabled()) {
     if (script->name()->IsString()) {
       SmartPointer<char> data =
           String::cast(script->name())->ToCString(DISALLOW_NULLS);
       LOG(CodeCreateEvent(is_eval ? "Eval" : "Script", *code, *data));
+      OProfileAgent::CreateNativeCodeRegion(*data, code->address(),
+                                            code->ExecutableSize());
     } else {
       LOG(CodeCreateEvent(is_eval ? "Eval" : "Script", *code, ""));
+      OProfileAgent::CreateNativeCodeRegion(is_eval ? "Eval" : "Script",
+          code->address(), code->ExecutableSize());
     }
   }
 #endif
 
   // Allocate function.
   Handle<JSFunction> fun =
       Factory::NewFunctionBoilerplate(lit->name(),
                                       lit->materialized_literal_count(),
                                       lit->contains_array_literal(),
                                       code);
@@ skipping 153 matching lines @@
 
   // Compile the code.
   Handle<Code> code = MakeCode(lit, script, Handle<Context>::null(), false);
 
   // Check for stack-overflow exception.
   if (code.is_null()) {
     Top::StackOverflow();
     return false;
   }
 
-#ifdef ENABLE_LOGGING_AND_PROFILING
+#if defined ENABLE_LOGGING_AND_PROFILING || defined ENABLE_OPROFILE_AGENT
   // Log the code generation. If source information is available include script
   // name and line number. Check explicit whether logging is enabled as finding
   // the line number is not for free.
-  if (Logger::is_enabled()) {
+  if (Logger::is_enabled() || OProfileAgent::is_enabled()) {
     if (script->name()->IsString()) {
       int line_num = script->GetLineNumber(start_position);
       if (line_num > 0) {
         line_num += script->line_offset()->value() + 1;
       }
       LOG(CodeCreateEvent("LazyCompile", *code, *lit->name(),
                           String::cast(script->name()), line_num));
+      OProfileAgent::CreateNativeCodeRegion(*lit->name(),
+                                            String::cast(script->name()),
+                                            line_num, code->address(),
+                                            code->ExecutableSize());
     } else {
       LOG(CodeCreateEvent("LazyCompile", *code, *lit->name()));
+      OProfileAgent::CreateNativeCodeRegion(*lit->name(), code->address(),
+                                            code->ExecutableSize());
     }
   }
 #endif
 
   // Update the shared function info with the compiled code.
   shared->set_code(*code);
 
   // Set the expected number of properties for instances.
   SetExpectedNofPropertiesFromEstimate(shared, lit->expected_property_count());
 
   // Check the function has compiled code.
   ASSERT(shared->is_compiled());
   return true;
 }
 
 
 } }  // namespace v8::internal